#include <stdio.h>

#define MAX(A, B)  ((A)>(B)?(A):(B))

int main()
{
    int a,b;
    printf("请输入两个整数：");
    scanf(" %d%d",&a,&b);

    int max = MAX(a,b);
    printf("max = %d",max);

    return 0;
}